DTM raster outputs have a shift between tiles

[Tom Bennett]

Hi all, 

This is the same question on the github page https://github.com/jblindsay/whitebox-tools/issues/398

I am currently running the following on a area of tiled LAZ files(500m x 500m) to produce a set of tiled asc dtms that match the LAZ file extents.

• lidar tin gridding
• mosaic
• fill missing data
• clip_raster_to_polygon (to remove outer triangles)
• clip_raster_to_polygon (to cut raster to original laz tile sizes)
• convert raster format (to asc)

However when inspecting the output against the same data output in lastools blast2dem, I notice a mismatch on some of the tiles. Does anyone have any idea what this could be.



The orange is the whitebox output and the white is the lastools output. As you can see they match on some tiles but on others there seems to be a shift.

Any idea why this might be?